• Title/Summary/Keyword: Eumedoninae

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Zoeal Stages of Harrovia japonica (Decapoda: Brachyura:Pilumnidae) with a Key to the Known Eumedoninid Zoeae from the Indo-Pacific

  • Lee, Seok-Hyun;Ko, Hyun-Sook
    • Animal cells and systems
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    • v.13 no.2
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    • pp.213-222
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    • 2009
  • We obtained four zoeal stages of Harrovia japonica from laboratory-hatched material. They are described, illustrated in detail, and compared with those of other known species in the family Pilumnidae. The general zoeal morphology of H. japonica coincides well with those of other known species of the Eumedoninae (excluding Echinoecus pentagonus) and Pilumnus minutus of the Pilumninae. In order to facilitate the study of planktoncollected material, we provide a key for the identification of seven known zoeae of the Eumedoninae from the IndoPacific.

The First Zoeal Stage of Echinoecus nipponicus (Decapoda: Pilumnidae: Eumedoninae) Hatched in the Laboratory

  • Lee, Seok Hyun
    • Animal Systematics, Evolution and Diversity
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    • v.36 no.4
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    • pp.304-308
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    • 2020
  • Ovigerous crab of Echinoecus nipponicus of subfamily Eumedoninae in Pilumnidae was collected from Seogwipo, Jejudo and hatched in the laboratory. The first zoeal stage of E. nipponicus is reported for the first time in the world and its digital image of live zoeas is provided. The first zoea of E. nipponicus has yellowish red chromatophores which occurring behind eyes, on dorsal spine and on anterior margin of telson, reddish brown chromatophores on abdominal somites 2-5 ventrally, dorsal, rostral, and lateral spines shorter than carapace length, three aesthetascs and two setae on the antennule, two medial setae on the antennal exopod, lateral processes on the abdominal somites 2, 3, and two lateral spine and one dorsomedial spine on the telson.